PRACTICE TEST NERC QUESTIONS EXAM NEWEST 2026/2027 ACTUAL EXAM TEST BANK | 2 VERSIONS (VERSION A AND B) WITH 250 REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ (BRAND NEW!!)

PRACTICE TEST NERC QUESTIONS
EXAM NEWEST 2026/2027 ACTUAL
EXAM TEST BANK | 2 VERSIONS
(VERSION A AND B) WITH 250 REAL
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
(BRAND NEW!!)
1. Amtransmissionmlinemismoperatingmwithmamvoltagemphasemanglemdifferentmofm30mdegreesmbe
tweenmthemsendingmVsmandmthemreceivingmbusmVr.mIfmthemreceivingmendmloadmismsuddenlymi
ncreased,mthemvoltagemphasemanglemdifferencemwillmbe?m-
mCORRECTmANSWERmThemphasemanglemwillmincrease.mWhenmloadmismincreasedmphasemangl


emwillmincrease.



2. Amloadmhasmampowermfactormofm0.9mlagging.mIfmthemloadmdrawsm100mMVA,mwhatmismthemM
Wmdraw?m-mCORRECTmANSWERm90mpf=mmw/mva



3. Themhighmsidemofmamdelta-
wyemconnectionmtransformermismconnectedmtomampowermsystemmwithm199mkVmL-
Gmhighmsidemvoltage.mWhatmismthemvoltagemacrossmthemdeltamwindingmofmthemtransformer?
m-mCORRECTmANSWERmVl-l=msquaremrootmofm3mtimesmVl-gm1.73x191=m345kV




4. Ifmamtransmissionmlinemismcarryingm400mMWmandm300mMVARmwhatmismthemMVA?m-
mCORRECTmANSWERm3-4-5mtrianglem500mMVA




5. Themprimemmovermismthemcomponentmofmthemgeneratormthatmcreatesmthemrotationalmforce.
mInmamtypicalmcoalmfiredmsteammgeneratormwhatmcomponentmspinsmthemrotor?m-


mCORRECTmANSWERmTurbine

,6. Reactivemreservemresponsemduringmamdisturbancemismbestmobtainedmfrommwhichmdevise?m-
mCORRECTmANSWERmSynchronousmcondensers




7. FormtwomidenticallymconstructedmtransmissionmlinesmwheremLinemAmism150mmilesmlongmandm
linemBmism15mmilesmlong,mifmbothmlinesmaremlightlymloaded?m-
mCORRECTmANSWERmAmproducesmmoremreactivempowermthanmB.




8. Lightlymloadedmtransmissionmlinesmessentiallymbehavemlike?m-
mCORRECTmANSWERmShuntmCapacitors




9. Youmreceivemanmalarmmthatmindicatesmlowmoilmpressuremonmanmundergroundmtransmissionm
cable.mSCADAmshowsmthempressuremismcontinuingmtomdrop.mWhatmismthemfirstmstepmyoumtak
emtomprotectmthemline?m-mCORRECTmANSWERmIsolatemthemline



10. Computermsimulationsmshowmthatmformam100mMWmschedulemfrommBusmAmtomBusmB,m63%mo
fmthemschedulemwillmflowmonmthemscheduledmpathmandmthemremaindermwillmflowmonmotherm
parallelmpaths.mWhatmismthemdistributionmfactormformthemscheduledmpath?m-
mCORRECTmANSWERm63%




11. WhichmstatementmbestmdescribesmhowmreactivempowermMVARmpowermnormallymflows?m-
mCORRECTmANSWERmHighmVoltagemtomLowmVoltage




12. WhichmofmthemfollowingmtypesmofmdatamaremBAmandmRCmnotmrequiredmtomsharemwithmonema
nother?m-mCORRECTmANSWERmGeneratormstartmupmcost



13. TOPmmustmdevelop,mmaintain,mandmimplementmformalmpoliciesmandmproceduresmtomprovid
emformtransmissionmreliability.mWhichmofmthemfollowingmDOESmNOTmneedmtombemaddressed
minmthesempoliciesmandmprocedures?m-


mCORRECTmANSWERmPlannedmoutagesmofmgenerationmunits

,14. Am1000mMVAmratedmgeneratormthatmproducesm800mMWmandm100mMVARmismbestmdescribed
mas?m-mCORRECTmANSWERmOperatingminmamlaggingmmode.mInductivemsystem




15. WhichmofmthemfollowingmtypesmofmMWmloadmismthemmostmimpactedmbymanmintentionalmfreq
uencymreduction?m-mCORRECTmANSWERmMotor



16. Assumemtheremaremtwom250mmilemlongmtransmissionmlinesmexportingmanmexcessivemamoun
tmofmMWmfrommamgenerationmareamtomamloadmarea.mOnemofmthemlinesmsuddenlymtripsmandmt
hemareampowermsystemmcollapsesmwithinmamfewmseconds.mThemmostmlikelymcausemofmthemc
ollapse?m-mCORRECTmANSWERmAnglemInstability



17. Themphasemvoltageminmamwye-
connectedmloadmism277mV.mWhatmismthemlinemtomlinemvoltage?m-mCORRECTmANSWERm480mV



18. Amsimplempowermsystemmismcomposedmofmthreemlinesmconnectingmgenerationmtomload.mEac
hmlinesmthemsamemimpedance,misminitiallymloadedmatm200mMW,mandmhasmamthermalmlimitmof
m400mMW.mIfmonemlinemtrips,mwhatmthemloadingmonmthemshortestmremainingmlinembemandmwi


llmthemthermalmlimitmeithermremainingmlinembemviolated?m-
mCORRECTmANSWERm300mMWmandmNo




19. Thembestmpredictionmofmsystemmloadmismthemloadmforecastmtoolmthatmuses?m-
mCORRECTmANSWERmForecastedmWeather




20. Ifmthemphasemangelmatmanmopenmbreakermismequalmtom1/10mofmamcycle,mthismismthemthemsam
emanglemas?m-mCORRECTmANSWERm1/10mofm360msom36



21. Am___________mtoolmismusedmtomensuremthempowermsystemmcanmrespondmwithinmacceptab
lemlimitsmofmN-1m-mCORRECTmANSWERmContingencymAnalysis

, 22. Whichmofmthemfollowingmactivitiesmwouldmnotmbemincludedminmthemproceduresmformtransmi
ssionmreliability?m-mCORRECTmANSWERmAncillarymservicempricing



23. ThemtransmissionmOperatormandmBAmshallmprovidemdocumentationmthatmoperatingmperson
nelmhavem______mtomimplementmrealmtimemactionsmtomensuremthemstablemandmreliablemope
rationmofmthemBES.m-mCORRECTmANSWERmPropermNERCmCertificationmCredential



24. Amutilitymdistributionmbusmhasmthemfollowingmcustomermloadsmattached.mWhatmismthemtotal
mcustomermMWmloadmandmismthemtotalmcustomermloadmcapacitivemorminductive?m5mMWm1m


MVARm&m3mMWm1mMVARm&m2mMWm-2mMVARm&m10mMWm3mMVARm-
mCORRECTmANSWERm20mmwmandmInductive




25. HowmmanymMVARsmdoesmam230mkV,m50mMVARmcapacitormbankmprovidemwhenmthemvoltage
midm207mkVm-mCORRECTmANSWERmActualmMW/mRatedmMWm^2mxmCapacitormRating


26. 40



27. Youmaremamsystemmoperatormandmthemloadmforecastmismformanmallmtimemsummermpeakmloadm
day,mgenerationsmandmreactivemresourcesmwillmbemtight.mWhichmscheduledmjobmwouldmyoum
allowmtomproceed?m-mCORRECTmANSWERm735mkVmshuntmreactormmaintenance.



28. AmcontingencymresultsminmthemexceedancemofmanmIROL.mWhatmcouldmbemthemresultmifmthemI
ROLmismallowedmtombemexceededmlongermthanmTmsubmvm-
mCORRECTmANSWERmInterruptionmofmpowermtomamlargempartmofmthemBES




29. Generatorsmhavemthemabilitymtombemusedmasmvoltagemcontrolmdevices.mIfmamgeneratormraise
smitsmVARmoutput,mthemsystemmoratormshouldmexpectmsystemmstagemto?m-
mCORRECTmANSWERmIncrease




30. Themactualmvoltagemism362kVmonmam345mbus.mWhatmismthemp.u.mvoltage?m-
mCORRECTmANSWERm1.05